Examples, E-23, 50ч10 – Casio fx-115ES PLUS User Manual
Page 24
E-23
Examples
sin 30°= 0.5
bv
s 30 )=
0.5
sin
−1
0.5 = 30°
bv 1s(sin
−1
) 0.5
)=
30
sinh 1 = 1.175201194
wb(sinh) 1 )=
1.175201194
cosh
–1
1 = 0
wf(cosh
−1
) 1
)=
0
π /2 radians = 90°, 50 grads = 45° v
(15(π)/ 2 )1G(DRG')c(
r
)
=
90
50
1G(DRG')d(
g
)
=
45
To
calculate
e
5
× 2 to three significant digits (Sci 3)
1N(SETUP)7(Sci)3
B
1i(%) 5 e* 2 =
2.97×10
2
b
1i(%) 5 )* 2 =
2.97×10
2
log
10
1000 = log 1000 = 3
l 1000 )=
3
log
2
16 = 4
l 2 1)(,) 16 )=
4
B
& 2 e 16 =
4
To calculate ln 90 (= log
e
90) to three significant digits (Sci 3)
1N(SETUP)7(Sci)3
i 90 )=
4.50Ч10
0
1.2
Ч 10
3
= 1200
B 1.2
* 10 6 3 =
1200
(1+1)
2+2
= 16
B ( 1 + 1 )6 2 + 2 =
16
(5
2
)
3
= 15625
( 5 x)1w(
x
3
)
=
15625
32
5
= 2
B 16(") 5 e 32 =
2
b
5
16(") 32 )=
2
To calculate
'
2
× 3(= 3'
2 = 4.242640687...) to three decimal
places (Fix 3)
1N(SETUP)6(Fix)3 B
! 2 e* 3 =
3
'
2
1=
4.243
b
! 2 )* 3 =
4.243
∫
1
e
ln(
x
) = 1
B 7iS)(X))e 1 eS5(
e
)
=
1
b
7iS)(X))1)(,)
1
1)(,)S5(
e
)
)=
1
To obtain the derivative at point
x
=
π/2 for the function
y
= sin(
x
)
V
B
17(F)sS)(X))
e'15(π)e 2 =
0
b
17(F)sS)(X))
1)(,)15(π)' 2 )=
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9